US7708686B2 - Color filter imaging array and method of formation - Google Patents

Color filter imaging array and method of formation Download PDF

Info

Publication number
US7708686B2
US7708686B2 US10862408 US86240804A US7708686B2 US 7708686 B2 US7708686 B2 US 7708686B2 US 10862408 US10862408 US 10862408 US 86240804 A US86240804 A US 86240804A US 7708686 B2 US7708686 B2 US 7708686B2
Authority
US
Grant status
Grant
Patent type
Prior art keywords
color
filter
array
elements
pattern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US10862408
Other versions
US20040234873A1 (en )
Inventor
Kartik Venkataraman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptina Imaging Corp
Original Assignee
Aptina Imaging Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/04Picture signal generators
    • H04N9/045Picture signal generators using solid-state devices
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14601Structural or functional details thereof
    • H01L27/1462Coatings
    • H01L27/14621Colour filter arrangements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14601Structural or functional details thereof
    • H01L27/14603Special geometry or disposition of pixel-elements, address-lines or gate-electrodes
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14601Structural or functional details thereof
    • H01L27/14609Pixel-elements with integrated switching, control, storage or amplification elements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14601Structural or functional details thereof
    • H01L27/14625Optical elements or arrangements associated with the device
    • H01L27/14627Microlenses
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14643Photodiode arrays; MOS imagers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S600/00Surgery
    • Y10S600/921Manipulating image characteristics

Abstract

A color filter array pattern for use in a solid-state imager comprising red sensitive elements located at every other array position, with alternating blue sensitive and green sensitive elements located at the remaining array positions, is disclosed. Since red color is sampled most frequently, the color filter may be part of an in vivo camera system for imaging internal human body organs and tissues.

Description

This application is a continuation of application Ser. No. 10/142,961, filed on May 13, 2002, now U.S. Pat. No. 6,783,900, issued Aug. 31, 2004, the disclosure of which is incorporated by reference herein.

FIELD OF THE INVENTION

The present invention relates to color filters for use in a solid-state image sensor and, in particular, to a color filter array with a pattern that samples red color most frequently relative to blue and green colors, and method of formation.

BACKGROUND OF THE INVENTION

Solid-state image sensors, also known as imagers, were developed in the late 1960s and early 1970s primarily for television image acquisition, transmission, and display. An imager absorbs incident radiation of a particular wavelength (such as optical photons, x-rays, or the like) and generates an electrical signal corresponding to the absorbed radiation. There are a number of different types of semiconductor-based imagers, including charge coupled devices (CCDs), photodiode arrays, charge injection devices (CIDs), hybrid focal plan arrays, and CMOS imagers. Current applications of solid-state imagers include cameras, scanners, machine vision systems, vehicle navigation systems, video telephones, computer input devices, surveillance systems, auto focus systems, star trackers, motion detector systems, image stabilization systems and data compression systems for high-definition television, among other uses.

These imagers typically consist of an array of pixel cells containing photosensors, where each pixel produces a signal corresponding to the intensity of light impinging on that element when an image is focused on the array. These signals may then be stored, for example, to display a corresponding image on a monitor or otherwise used to provide information about the optical image. The photosensors are typically phototransistors, photoconductors or photodiodes. The magnitude of the signal produced by each pixel, therefore, is proportional to the amount of light impinging on the photosensor.

To allow the photosensors to capture a color image, the photosensors must be able to separately detect red (R) photons, green (G) photons and blue (B) photons. Accordingly, each pixel must be sensitive only to one color or spectral band. For this, a color filter array (CFA) is typically placed in front of the pixels so that each pixel measures the light of the color of its associated filter. Thus, each pixel of a color image sensor is covered with either a red, green or blue filter, according to a specific pattern.

FIG. 1 illustrates one such color filter array pattern, known as the “Bayer” pattern, which is described in more detail in U.S. Pat. No. 3,971,065 (the disclosure of which is incorporated by reference herein). In the Bayer pattern, red, green and blue pixels are arranged so that alternating pixels of red and green are on a first row of an image, and alternating pixels of blue and green are on a next row. Thus, when the image sensor is read out, line by line, the pixel sequence for the first line reads GRGRGR etc., and then the alternate line sequence reads BGBGBG etc. This output is called sequential RGB or sRGB.

In the Bayer pattern, sampling rates for all three basic color vectors are adjusted according to the acuity of the human visual system. That is, green color, to which the human eye is most sensitive and responsive, is sampled most frequently, whereas blue color, for which the human vision has least resolution, is sampled the least frequently. This is why in the Bayer pattern, the green-sensitive elements, which serve to detect luminance (the color vector which provides the luminance information) occur at every other array position, while the red-sensitive elements alternate with the blue-sensitive elements.

As a result of these attributes, the Bayer pattern has vast applications in imaging objects having a more or less uniform representations of colors across the entire visible spectrum. Thus, sampling the green color at twice the frequency of the other primary colors provides a good representation of the luminance component of a particular object being imaged. Nevertheless, if the object being imaged has a relatively low spectral reflectivity in the green part of the wavelength, the image captured with an imager employing a Bayer color filter pattern can be suboptimal.

There is needed, therefore, a color filter array pattern of a CMOS-sensor for sensing objects which do not have a uniform representation of colors across the visible spectrum, for example, elements of the human body non-visible to the naked eye, such as the internal organs of the gastrointestinal tract. A method of fabricating such color filter pattern is also needed.

BRIEF SUMMARY OF THE INVENTION

In one aspect, the present invention provides a color filter array pattern for use in a solid-state imager for imaging internal organs comprising red sensitive elements located at every other array position, and alternating blue sensitive and green sensitive elements located at the remaining array positions. This way, red color is sampled most frequently and blue and green colors are sampled least frequently.

In another aspect, the invention provides a method of using a color filter array pattern of a solid-state imager for imaging objects which do not have a uniform representation of colors across the visible spectrum, for example, internal organs of the human gastrointestinal tract. By employing the color filter pattern of the present invention in in vivo video camera systems or in a small CCD or CMOS imager capsule camera used in medical procedures, such as gastrointestinal endoscopy for example, the predominantly red color of the organs of human gastrointestinal tract is sampled at twice the frequency of the other two basic colors, blue and green.

Also provided are methods for forming the color filter array pattern of the present invention. These and other advantages and features of the present invention will be apparent from the following detailed description and drawings which illustrate preferred embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a schematic representation of the Bayer color pattern.

FIG. 2 illustrates a schematic representation of a color filter pattern of the present invention.

FIG. 3 is an exploded three-dimensional representation of the color filter pattern of FIG. 2.

FIG. 4 is a side cross-sectional view illustrating the principal elements of a solid-state imager having a color filter array constructed in accordance with the present invention.

FIG. 5 illustrates a schematic cross-sectional view of a CMOS imager pixel cell having a color filter array constructed in accordance with the present invention.

FIG. 6 is a representative diagram of the CMOS imager pixel cell of FIG. 5.

FIG. 7 illustrates a cross-sectional view of a semiconductor wafer undergoing the process of forming a color pattern layer according to an embodiment of the present invention.

FIG. 8 illustrates the semiconductor wafer of FIG. 7 at a stage of processing subsequent to that shown in FIG. 7.

FIG. 9 illustrates the semiconductor wafer of FIG. 7 at a stage of processing subsequent to that shown in FIG. 8.

FIG. 10 is an illustration of an imaging system having an imager with a color filter pattern according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized, and that structural, logical and electrical changes may be made without departing from the spirit and scope of the present invention.

The terms “wafer” and “substrate” are to be understood as including silicon-on-insulator (SOI) or silicon-on-sapphire (SOS) technology, doped and undoped semiconductors, epitaxial layers of silicon supported by a base semiconductor foundation, and other semiconductor structures. Furthermore, when reference is made to a “wafer” or “substrate” in the following description, previous process steps may have been utilized to form regions or junctions in or above the base semiconductor structure or foundation. In addition, the semiconductor need not be silicon-based, but could be based on silicon-germanium, germanium, or gallium arsenide.

The term “pixel” refers to a picture element unit cell containing a photosensor and transistors for converting electromagnetic radiation to an electrical signal. For purposes of illustration, a representative CMOS imager pixel is illustrated in the figures and description herein. However, this is just one example of the type of imagers and pixel cells thereof with which the invention may be used. The following detailed description is, therefore, not to be taken in a limiting sense, but rather as an exemplary illustration of the invention.

Referring now to the drawings, where like elements are designated by like reference numerals, an image sampling array pattern (color filter pattern) 10 of the present invention is illustrated in FIGS. 2-3. Three sets of sensor patterns 11, 13 and 15 (FIG. 3), each corresponding to a basic color vector, are interlaid to form the image sampling array pattern 10 (FIGS. 2-3). The sensor pattern 11 is formed of red-sensitive elements (also called luminance elements) which are denoted by an “R” and are arranged at every other element position of the sampling array. Since the sensor pattern 11 has the highest number of color sensitive elements, the sensor pattern 11 is called the luminance pattern. As illustrated in FIGS. 2-3, the red luminance elements of sensor pattern 11 occur at half the element positions of the array and are uniformly distributed over the entire sampling array 10. Thus, luminance detail is sampled by the red elements which form the largest population of elements.

Sensor pattern 13 has green elements denoted “G” which alternate with the red luminance elements of the sensor pattern 11 in alternate rows. Similarly, sensor pattern 15 has blue elements denoted “B” which alternate with the red luminance elements of the sensor pattern 11 in alternate rows. This way, sensor patterns 13 and 15 form a symmetrical and uniform arrangement in two orthogonal positions, horizontal and vertical, as shown in FIG. 2. When an image sensor is read out, line by line, the pixel sequence reads RGRGRG etc., and then the alternate line sequence reads BRBRBR etc.

In the arrangement of FIGS. 2-3, the red elements form half of the element population, while the blue and green elements form the other half of the element population. Thus, the blue sensitive elements form one fourth of the element population, while the green sensitive elements also form one fourth of the element population. As a result of the twice greater population of the red elements relative to the blue and green ones, red detail is sampled at a twice higher rate than blue detail or green detail. As a result of the red luminance pattern, sampling of an image devoid of all three basic colors, for example, of an image predominant in red and red hues, is symmetrical and uniform in both the horizontal and vertical direction. Thus, the color sampling array pattern 10 is preferably employed for sampling all three basic color vectors according to the primary color of the internal human body, that tends to be in the red spectrum. Sampling the red color at twice the frequency of the other two primary colors provides a good representation of the luminance component of a particular internal body part, organ, tissue or element being imaged.

A solid-state imager 20 comprising a color filter layer 100 having color filter pattern 10 of the present invention is schematically illustrated in FIGS. 4-6. The imager 20 comprises color filter layer 100 formed over a pixel array 26 as part of the same substrate 30, which may be any of the types of substrate described above. The pixel array 26 comprises a plurality of pixel sensor cells 28 formed in and over the substrate, and is covered by a protective layer 24 that acts as a passivation and planarization layer for the imager 20. Protective layer 24 may be a layer of BPSG, PSG, BSG, silicon dioxide, silicon nitride, polyimide, or other well-known light transmissive insulator.

The color filter layer 100 having color filter pattern 10 described above is formed over the passivation layer 24. The color filter layer 100 comprises an array of red sensitive elements located at every other array position, and alternating blue sensitive and green sensitive elements located at the remaining array positions, as described in detail above with reference to the color imaging array pattern 10. This way, the color filter layer 100 samples red color most frequently and blue and green colors least frequently.

As also depicted in FIGS. 4-6, a microlens array 22 is formed so that microlens 70 are formed above each pixel cell 28. The microlens array 22 is formed such that the focal point of the array is centered over the photosensitive elements in each pixel cell 28. The device also includes a spacer layer 25 under the mircolens array 22 and over the color filter layer 100. The thickness of spacer layer 25 is adjusted such that the photosensitive element is at a focal point for the light traveling through lenses 70 of microlens array 22.

As shown in FIGS. 5-6, each pixel sensor cell 28 contains a photosensor 34, which may be a photodiode, photogate, or the like. A photogate photosensor 34 is depicted in FIGS. 5-6. An applied control signal PG is applied to the photogate 34 so that when incident radiation 101 in the form of photons passes color filter layer 100 and strikes the photosensor 34, the photo-generated electrons accumulate in the doped region 36 under the photosensor 34. A transfer transistor 38 is located next to the photosensor 34, and has source and drain regions 36, 40 and a gate stack 42 controlled by a transfer signal TX. The drain region 40 is also called a floating diffusion region or a floating diffusion node, and it passes charge received from the photosensor 34 to output transistors 44, 46 and then to readout circuitry 48. A reset transistor 50 comprised of doped regions 40, 52 and gate stack 54 is controlled by a reset signal RST which operates to reset the floating diffusion region 40 to a predetermined initial voltage just prior to signal readout. Details of the formation and function of the above-described elements of a pixel sensor cell may be found, for example, in U.S. Pat. No. 6,376,868 and U.S. Pat. No. 6,333,205, the disclosures of which are incorporated by reference herein.

As illustrated in FIG. 5, the gate stacks 42, 54 of the pixel cell 28 for the transfer 38 and reset 50 transistors include a silicon dioxide or silicon nitride insulator 56 on the substrate 30, which in this example is a p-type substrate, a conductive layer 58 of doped polysilicon, tungsten, or other suitable material over the insulating layer 56, and an insulating cap layer 60 of, for example, silicon dioxide, silicon nitride, or ONO (oxide-nitride-oxide). A silicide layer 59 may be used between the polysilicon layer 58 and the cap 60, if desired. Insulating sidewalls 62 are also formed on the sides of the gate stacks 42, 54. These sidewalls may be formed of, for example, silicon dioxide, silicon nitride, or ONO. A field oxide layer 64 around the pixel cell 28 serves to isolate it from other pixel cells in the array. A second gate oxide layer 57 may be grown on the silicon substrate and the photogate semi-transparent conductor 66 is patterned from this layer. In the case that the photosensor is a photodiode, no second gate oxide layer 57 and no photogate semi-transparent conductor 66 is required. Furthermore, transfer transistor 38 is optional, in which case the diffusion regions 36 and 40 are connected together.

The color filter layer 100 of the embodiment described above is manufactured through a process described as follows, and illustrated in FIGS. 7-9. Referring now to FIG. 7, a substrate 30, which may be any of the types of substrates described above, having a pixel array 26, peripheral circuits, contacts and wiring formed thereon by well-known methods, is provided. A protective layer 24 of BPSG, BSG, PSG, silicon dioxide, silicon nitride or the like is formed over the pixel array 26 to passivate it and to provide a planarized surface.

A color filter layer 100 is formed over the passivation layer 24, as also shown in FIG. 7. The color filter layer 100 may be formed of a color resist or acrylic material which is used as a light transmitting material. For example, color filter layer 100 may be formed of a plurality of color filter layers, each of the plurality of color filter layers consisting of red filter regions (not shown), green filter regions (not shown) and blue filter regions (not shown), which are formed, for example, from resist or acrylic material of the respective color-filtering qualities. As such, red sensitive resist material, blue sensitive resist material and green sensitive resist material may be employed to form the red, blue and green sensitive elements of each of the plurality of color filter layers that form color filter layer 100. These red, blue and green elements are disposed side by side, and according to the above-described color filter pattern 10, so that the red sensitive elements are located at every other array position, with alternating blue sensitive and green sensitive elements located at the remaining array positions. Other embodiments may employ other colored materials, such as paint or dye, as known in the art. The color filter layer 100 may be formed over the passivation layer 24 by conventional deposition or spin-on methods, for example.

The red, blue and green filter elements are preferably squares of generally less than 50 microns wide, although other geometrical shapes may be used also, and are placed in registration with the photosensitive elements (for example photodiodes) of the semiconductor layer.

Next, a spacing layer 25 is formed over the protective layer 24, as illustrated in FIG. 8. Refractive lenses 70 may then be formed, as shown in FIG. 9, from a lens forming layer, for example, so that each lens 70 overlies a pixel cell 28. Alternative constructions in which a lens 70 overlies multiple pixel cells 28 are also encompassed by the present invention.

The color filter layer 100 is essentially complete at this stage, and conventional processing methods may now be performed to package the imager 20. Pixel arrays having the color filter array pattern of the present invention, and described with reference to FIGS. 2-9, may be further processed as known in the art to produce a CMOS imager.

The filter array of the present invention may be also used with pixels of other types of imagers as well, for example, with a CCD imager. If desired, the imager 20 may be combined with a processor, such as a CPU, digital signal processor or microprocessor. The imager 20 and the microprocessor may be formed in a single integrated circuit. An exemplary processor system 400 using a CMOS imager having a filter array in accordance with the present invention is illustrated in FIG. 10. A processor based system is exemplary of a system having digital circuits which could include CMOS or other imager devices. Without being limiting, such a system could include a computer system, camera system, scanner, machine vision system, vehicle navigation system, video telephone, surveillance system, auto focus system, star tracker system, motion detection system, image stabilization system and data compression system for high-definition television, all of which can utilize the present invention.

As shown in FIG. 10, an exemplary processor system 400 generally comprises a central processing unit (CPU) 444, e.g., a microprocessor, that communicates with an input/output (I/O) device 446 over a bus 452. The imager 20 also communicates with the system over bus 452. The computer system 400 also includes random access memory (RAM) 448, and may include peripheral devices such as a floppy disk drive 454, a compact disk (CD) ROM drive 456 or a flash memory 458 which also communicate with CPU 444 over the bus 452. The floppy disk 454, the CD ROM 456 or flash memory 458 stores images captured by imager 20. The imager 20 is preferably constructed as an integrated circuit, with or without memory storage, which includes a color filter layer 100 having color filter pattern 10 of the present invention, as previously described with respect to FIGS. 2-9.

Since the color filter array pattern for use in a solid-state imager, as described above, comprises red sensitive elements located at every other array position, and alternating blue sensitive and green sensitive elements located at the remaining array positions, red color is sampled most frequently and blue and green color are sampled least frequently. For this reasons, the color filter array pattern of the present invention may be employed for obtaining images and data measurements from a variety of organ systems, tissues and cells for use in splanchnology (study of viscera), neurology (study of nervous system), osteology (study of bones), syndesmology (study of ligaments and joints) and myology (study of muscles), among others. This way, sampling red color (the primary color of internal body organs, tissues and cells) at twice the frequency of the other two primary colors provides a good representation of the luminance component of the particular internal body organ, tissue or cell being imaged.

Accordingly, and in a preferred embodiment of the present invention, the imager 20 is constructed as an integrated circuit with a color filter layer 100 and color filter pattern 10 of the present invention, and further as a part of an in vivo video camera system or an in vivo measurement system, which detects images and analyzes data of various systems of the human body, such as the digestive or muscular systems, for example. In vivo video camera and measurement systems typically include swallowable electronic capsules which collect data from various internal body organs or tissues and further transmit data to a receiver system. These swallowable intestinal capsules may also include a transmission system for transmitting the measured data at various radio frequencies to the receiver system.

Other in vivo detecting and measuring systems, to which the imager 20 comprising color filter layer 100 with color filter pattern 10 of the present invention may be attached, are endoscopes, which are typically long tubes that patients swallow to provide images of the upper or lower gastrointestinal tract. The endoscopes may be fiber optic endoscopes or video endoscopes. In video endoscopes, for example, a small electronic camera is placed at the area of interest and stores the images until after the test finishes.

More detail on in vivo video cameras and swallowable capsules are provided, for example, in U.S. Pat. No. 5,604,531 to Iddan et al.; U.S. Pat. No. 4,278,077 to Mizumoto; U.S. Pat. No. 5,267,033 to Hoshino; and E. N. Rowland and H. S. Wolff, The Radio Pill: Telemetering from the Digestive Tract, British Communications and Electronics (August 1960, pp. 598-601), the disclosures of which are incorporated by reference herein.

It should again be noted that although the invention has been described with specific reference to imaging circuits having a pixel array, the invention has broader applicability and may be used in any imaging apparatus. Similarly, the process for the fabrication of the color filter layer 100 described above is but one method of many that could be used. The above description and drawings illustrate preferred embodiments which achieve the objects, features and advantages of the present invention. It is not intended that the present invention be limited to the illustrated embodiments. Any modification of the present invention which comes within the spirit and scope of the following claims should be considered part of the present invention.

Claims (9)

1. A method of obtaining an image from a tissue of a body organ, said method comprising the steps of:
positioning an in vivo detecting system in the proximity of said tissue of said body organ, said detecting system being a swallowable capsule, said detecting system comprising an array of pixel sensor cells providing output data representing an image of said tissue of said body organ, said array comprising a color filter layer formed of a plurality of red sensitive elements, blue sensitive elements and green sensitive elements, wherein said plurality of red, blue and green sensitive elements are arranged in a color filter pattern so that said red sensitive elements occur at every other element position of said color filter pattern, and wherein said blue sensitive elements and said green sensitive elements alternate with said red sensitive elements in alternate rows, respectively, of said color filter pattern;
sampling the red color of said tissue of said body organ at a first frequency; and
sampling the green color of said tissue of said body organ at a second frequency, wherein said first frequency is twice said second frequency.
2. The method of claim 1, further comprising the step of sampling the blue color of said tissue of said body organ at said second frequency.
3. The method of claim 1, wherein said in vivo detecting system is an imager, and wherein said imager comprises an imaging array having said plurality of pixel sensor cells formed at an upper surface of a substrate.
4. The method of claim 1, wherein said body organ is a human body organ.
5. A method of outputting an image of at least a portion of the human gastrointestinal tract, said method comprising the steps of:
providing an imaging system in the proximity of said at least a portion of the human gastrointestinal tract;
detecting the red color of said at least a portion of the human gastrointestinal tract at a first frequency to obtain a first measured data;
detecting the green color of said at least a portion of the human gastrointestinal tract at a second frequency to obtain a second measured data, wherein said first frequency is twice said second frequency;
detecting the blue color of said at least a portion of the human gastrointestinal tract at said second frequency to obtain a third measured data; and
transmitting said first, second and third measured data to a receiver system.
6. The method of claim 5, wherein said imaging system is an in vivo detecting system.
7. The method of claim 6, further comprising the step of attaching said in vivo detecting system to an endoscope.
8. The method of claim 6, wherein said in vivo detecting system is a CMOS capsule camera.
9. The method of claim 5, wherein said imaging system further comprises:
an imaging array having a plurality of pixel sensor cells formed at an upper surface of a substrate; and
a color filter layer formed on said imaging array, said color filter layer comprising a plurality of red sensitive elements, blue sensitive elements and green sensitive elements, said plurality of red, blue and green sensitive elements being arranged in a color filter pattern so that said red sensitive elements occur at every other element position of said color filter pattern.
US10862408 2002-05-13 2004-06-08 Color filter imaging array and method of formation Active 2025-03-28 US7708686B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10142961 US6783900B2 (en) 2002-05-13 2002-05-13 Color filter imaging array and method of formation
US10862408 US7708686B2 (en) 2002-05-13 2004-06-08 Color filter imaging array and method of formation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10862408 US7708686B2 (en) 2002-05-13 2004-06-08 Color filter imaging array and method of formation

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10142961 Continuation US6783900B2 (en) 2002-05-13 2002-05-13 Color filter imaging array and method of formation

Publications (2)

Publication Number Publication Date
US20040234873A1 true US20040234873A1 (en) 2004-11-25
US7708686B2 true US7708686B2 (en) 2010-05-04

Family

ID=29400008

Family Applications (2)

Application Number Title Priority Date Filing Date
US10142961 Active 2022-07-30 US6783900B2 (en) 2002-05-13 2002-05-13 Color filter imaging array and method of formation
US10862408 Active 2025-03-28 US7708686B2 (en) 2002-05-13 2004-06-08 Color filter imaging array and method of formation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10142961 Active 2022-07-30 US6783900B2 (en) 2002-05-13 2002-05-13 Color filter imaging array and method of formation

Country Status (7)

Country Link
US (2) US6783900B2 (en)
EP (1) EP1506679B1 (en)
JP (1) JP2005526458A (en)
KR (1) KR100621086B1 (en)
CN (1) CN100375539C (en)
DE (2) DE60310706T2 (en)
WO (1) WO2003098940A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090295962A1 (en) * 2008-05-30 2009-12-03 Omnivision Image sensor having differing wavelength filters
US8765333B2 (en) 2012-07-30 2014-07-01 United Microelectronics Corp. Color filter array having hybrid color filters and manufacturing method thereof
US9497380B1 (en) 2013-02-15 2016-11-15 Red.Com, Inc. Dense field imaging

Families Citing this family (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122149A1 (en) * 2001-05-08 2002-11-14 Creavis Tech & Innovation Gmbh A process for the antimicrobial finishing of porous materials
US20060184039A1 (en) * 2001-07-26 2006-08-17 Dov Avni Apparatus and method for light control in an in-vivo imaging device
US9149175B2 (en) * 2001-07-26 2015-10-06 Given Imaging Ltd. Apparatus and method for light control in an in-vivo imaging device
US7355156B2 (en) * 2003-05-08 2008-04-08 Fujilfilm Corporation Solid-state image pickup device, image pickup unit and image processing method
DE102004003013B3 (en) * 2004-01-20 2005-06-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical imaging system for timepiece, portable computer, mobile telephone, spectacles, clothing item, chip card or sticker using array of optical channels with relatively angled optical axes
KR100800705B1 (en) * 2004-03-26 2008-02-01 삼성전자주식회사 Device for controlling reflection wave of inputted light in camera device
WO2005110202A1 (en) * 2004-05-14 2005-11-24 Olympus Medical Systems Corp. Electronic endoscope
US7605852B2 (en) * 2004-05-17 2009-10-20 Micron Technology, Inc. Real-time exposure control for automatic light control
US20050253937A1 (en) * 2004-05-17 2005-11-17 Micron Technology, Inc. Real-time exposure control for automatic light control
US7336833B2 (en) * 2004-06-30 2008-02-26 Given Imaging, Ltd. Device, system, and method for reducing image data captured in-vivo
KR100610481B1 (en) * 2004-12-30 2006-08-08 매그나칩 반도체 유한회사 Image sensor with enlarged photo detecting area and method for fabrication thereof
EP2249387B1 (en) * 2005-03-28 2012-09-05 Fujitsu Semiconductor Limited Imaging device
JP2006294773A (en) * 2005-04-08 2006-10-26 Sony Corp Solid state image sensing device and manufacturing method thereof
US20060232668A1 (en) * 2005-04-18 2006-10-19 Given Imaging Ltd. Color filter array with blue elements
KR100665177B1 (en) * 2005-05-25 2007-01-09 삼성전기주식회사 Image sensor for semiconductor light-sensitive device, and image processing apparatus using the same
US7808063B2 (en) * 2005-05-26 2010-10-05 Micron Technology, Inc. Structure and method for FPN reduction in imaging devices
WO2006134740A1 (en) * 2005-06-17 2006-12-21 Toppan Printing Co., Ltd. Imaging element
US7576361B2 (en) * 2005-08-03 2009-08-18 Aptina Imaging Corporation Backside silicon wafer design reducing image artifacts from infrared radiation
US7511323B2 (en) * 2005-08-11 2009-03-31 Aptina Imaging Corporation Pixel cells in a honeycomb arrangement
US20070045668A1 (en) * 2005-08-26 2007-03-01 Micron Technology, Inc. Vertical anti-blooming control and cross-talk reduction for imagers
WO2007113801A3 (en) * 2006-03-30 2009-04-09 Ido Bettesh In-vivo sensing device and method for communicating between imagers and processor thereof
US7799491B2 (en) * 2006-04-07 2010-09-21 Aptina Imaging Corp. Color filter array and imaging device containing such color filter array and method of fabrication
US7541596B2 (en) * 2006-07-05 2009-06-02 Omnivision Technologies, Inc. Method and apparatus for increasing light absorption in an image sensor using energy conversion layer
US7965444B2 (en) * 2006-08-31 2011-06-21 Micron Technology, Inc. Method and apparatus to improve filter characteristics of optical filters
JP2008086667A (en) * 2006-10-04 2008-04-17 Olympus Medical Systems Corp Medical image processor
US7763913B2 (en) 2006-12-12 2010-07-27 Aptina Imaging Corporation Imaging method, apparatus, and system providing improved imager quantum efficiency
US8187174B2 (en) * 2007-01-22 2012-05-29 Capso Vision, Inc. Detection of when a capsule camera enters into or goes out of a human body and associated operations
US20080204580A1 (en) * 2007-02-28 2008-08-28 Micron Technology, Inc. Method, apparatus and system providing imaging device with color filter array
WO2008111927A3 (en) * 2007-03-08 2008-11-06 Nippon Kogaku Kk Underwater image apparatus with red bias filter array
JP4480740B2 (en) * 2007-07-03 2010-06-16 シャープ株式会社 A solid-state imaging device and a manufacturing method thereof, an electronic information device
US7531373B2 (en) * 2007-09-19 2009-05-12 Micron Technology, Inc. Methods of forming a conductive interconnect in a pixel of an imager and in other integrated circuitry
US20090091644A1 (en) * 2007-10-05 2009-04-09 Mackey Jeffrey L Metallic nanostructure color filter array and method of making the same
CN101227620B (en) 2007-11-14 2010-12-08 北京大学;英国伦敦大学玛丽皇后学院 Color filtering array, and obtaining method and device thereof
US20090159799A1 (en) * 2007-12-19 2009-06-25 Spectral Instruments, Inc. Color infrared light sensor, camera, and method for capturing images
JP5296396B2 (en) * 2008-03-05 2013-09-25 オリンパスメディカルシステムズ株式会社 Vivo image acquiring apparatus, in-vivo image receiving apparatus, in-vivo image display apparatus and method for removing noise
US20090224343A1 (en) * 2008-03-06 2009-09-10 Micron Technology, Inc. Methods of forming imager devices, imager devices configured for back side illumination, and systems including the same
JP4654264B2 (en) * 2008-04-10 2011-03-16 シャープ株式会社 Optical communication devices and electronic equipment
KR101475464B1 (en) 2008-05-09 2014-12-22 삼성전자 주식회사 Multi-layer image sensor
CN102037717B (en) 2008-05-20 2013-11-06 派力肯成像公司 Capturing and processing of images using monolithic camera array with hetergeneous imagers
US8866920B2 (en) 2008-05-20 2014-10-21 Pelican Imaging Corporation Capturing and processing of images using monolithic camera array with heterogeneous imagers
KR101633637B1 (en) * 2008-10-10 2016-06-27 코닌클리케 필립스 엔.브이. Light directionality sensor
US8514491B2 (en) 2009-11-20 2013-08-20 Pelican Imaging Corporation Capturing and processing of images using monolithic camera array with heterogeneous imagers
CN103004180A (en) 2010-05-12 2013-03-27 派力肯影像公司 Architectures for imager arrays and array cameras
CN102263114B (en) * 2010-05-24 2015-06-17 博立多媒体控股有限公司 Multi-depth of focus photosensitive device, system, depth of focus extension method and optical imaging system
KR20130093072A (en) * 2010-06-14 2013-08-21 헵타곤 마이크로 옵틱스 피티이. 리미티드 Method of manufacturing a plurality of optical devices
CN103827730B (en) * 2011-06-21 2017-08-04 管理前街不同收入阶层的前街投资管理有限公司 Method and apparatus for generating three-dimensional image information
US8866997B2 (en) 2010-11-02 2014-10-21 Arizona Board Of Regents On Behalf Of The University Of Arizona Patterned electronic and polarization optical devices
US8878950B2 (en) 2010-12-14 2014-11-04 Pelican Imaging Corporation Systems and methods for synthesizing high resolution images using super-resolution processes
WO2012155119A1 (en) 2011-05-11 2012-11-15 Pelican Imaging Corporation Systems and methods for transmitting and receiving array camera image data
ES2645020T3 (en) * 2011-06-24 2017-12-01 Boly Media Communications (Shenzhen) Co., Ltd photosensitive device multiple depths scene, system thereof, method of expanding depth of scene, and system optical imaging
WO2013003276A1 (en) 2011-06-28 2013-01-03 Pelican Imaging Corporation Optical arrangements for use with an array camera
US20130265459A1 (en) 2011-06-28 2013-10-10 Pelican Imaging Corporation Optical arrangements for use with an array camera
WO2013043761A1 (en) 2011-09-19 2013-03-28 Pelican Imaging Corporation Determining depth from multiple views of a scene that include aliasing using hypothesized fusion
CN107230236A (en) 2011-09-28 2017-10-03 Fotonation开曼有限公司 Systems And Methods For Encoding Light Field Image Files
US9412206B2 (en) 2012-02-21 2016-08-09 Pelican Imaging Corporation Systems and methods for the manipulation of captured light field image data
US9554115B2 (en) * 2012-02-27 2017-01-24 Semiconductor Components Industries, Llc Imaging pixels with depth sensing capabilities
US9210392B2 (en) 2012-05-01 2015-12-08 Pelican Imaging Coporation Camera modules patterned with pi filter groups
CN104508681A (en) 2012-06-28 2015-04-08 派力肯影像公司 Systems and methods for detecting defective camera arrays, optic arrays, and sensors
US20140002674A1 (en) 2012-06-30 2014-01-02 Pelican Imaging Corporation Systems and Methods for Manufacturing Camera Modules Using Active Alignment of Lens Stack Arrays and Sensors
US8878114B2 (en) 2012-08-16 2014-11-04 Nanohmics, Inc. Apparatus and methods for locating source of and analyzing electromagnetic radiation
CN104662589B (en) 2012-08-21 2017-08-04 派力肯影像公司 Disparity detection and correction for use in an image captured by the camera array system and method
WO2014032020A3 (en) 2012-08-23 2014-05-08 Pelican Imaging Corporation Feature based high resolution motion estimation from low resolution images captured using an array source
US9214013B2 (en) 2012-09-14 2015-12-15 Pelican Imaging Corporation Systems and methods for correcting user identified artifacts in light field images
US9143711B2 (en) 2012-11-13 2015-09-22 Pelican Imaging Corporation Systems and methods for array camera focal plane control
US9462164B2 (en) 2013-02-21 2016-10-04 Pelican Imaging Corporation Systems and methods for generating compressed light field representation data using captured light fields, array geometry, and parallax information
US9374512B2 (en) 2013-02-24 2016-06-21 Pelican Imaging Corporation Thin form factor computational array cameras and modular array cameras
US9638883B1 (en) 2013-03-04 2017-05-02 Fotonation Cayman Limited Passive alignment of array camera modules constructed from lens stack arrays and sensors based upon alignment information obtained during manufacture of array camera modules using an active alignment process
WO2014138697A1 (en) 2013-03-08 2014-09-12 Pelican Imaging Corporation Systems and methods for high dynamic range imaging using array cameras
US8866912B2 (en) 2013-03-10 2014-10-21 Pelican Imaging Corporation System and methods for calibration of an array camera using a single captured image
US9521416B1 (en) 2013-03-11 2016-12-13 Kip Peli P1 Lp Systems and methods for image data compression
US9124831B2 (en) 2013-03-13 2015-09-01 Pelican Imaging Corporation System and methods for calibration of an array camera
US9888194B2 (en) 2013-03-13 2018-02-06 Fotonation Cayman Limited Array camera architecture implementing quantum film image sensors
WO2014165244A1 (en) 2013-03-13 2014-10-09 Pelican Imaging Corporation Systems and methods for synthesizing images from image data captured by an array camera using restricted depth of field depth maps in which depth estimation precision varies
US9106784B2 (en) 2013-03-13 2015-08-11 Pelican Imaging Corporation Systems and methods for controlling aliasing in images captured by an array camera for use in super-resolution processing
WO2014153098A1 (en) 2013-03-14 2014-09-25 Pelican Imaging Corporation Photmetric normalization in array cameras
WO2014159779A1 (en) 2013-03-14 2014-10-02 Pelican Imaging Corporation Systems and methods for reducing motion blur in images or video in ultra low light with array cameras
US9445003B1 (en) 2013-03-15 2016-09-13 Pelican Imaging Corporation Systems and methods for synthesizing high resolution images using image deconvolution based on motion and depth information
JP2016524125A (en) 2013-03-15 2016-08-12 ペリカン イメージング コーポレイション System and method for three-dimensional imaging using the camera array
US9497429B2 (en) 2013-03-15 2016-11-15 Pelican Imaging Corporation Extended color processing on pelican array cameras
US9633442B2 (en) 2013-03-15 2017-04-25 Fotonation Cayman Limited Array cameras including an array camera module augmented with a separate camera
US9497370B2 (en) 2013-03-15 2016-11-15 Pelican Imaging Corporation Array camera architecture implementing quantum dot color filters
US9898856B2 (en) 2013-09-27 2018-02-20 Fotonation Cayman Limited Systems and methods for depth-assisted perspective distortion correction
US9264592B2 (en) 2013-11-07 2016-02-16 Pelican Imaging Corporation Array camera modules incorporating independently aligned lens stacks
US9456134B2 (en) 2013-11-26 2016-09-27 Pelican Imaging Corporation Array camera configurations incorporating constituent array cameras and constituent cameras
US20150146054A1 (en) * 2013-11-27 2015-05-28 Aptina Imaging Corporation Image sensors with color filter elements of different sizes
US9247117B2 (en) 2014-04-07 2016-01-26 Pelican Imaging Corporation Systems and methods for correcting for warpage of a sensor array in an array camera module by introducing warpage into a focal plane of a lens stack array
US9521319B2 (en) 2014-06-18 2016-12-13 Pelican Imaging Corporation Array cameras and array camera modules including spectral filters disposed outside of a constituent image sensor
US20160255323A1 (en) 2015-02-26 2016-09-01 Dual Aperture International Co. Ltd. Multi-Aperture Depth Map Using Blur Kernels and Down-Sampling
US9942474B2 (en) 2015-04-17 2018-04-10 Fotonation Cayman Limited Systems and methods for performing high speed video capture and depth estimation using array cameras
CN105852784A (en) * 2016-04-22 2016-08-17 深圳先进技术研究院 Multi-spectral medical endoscope lens and system

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971065A (en) 1975-03-05 1976-07-20 Eastman Kodak Company Color imaging array
US4565756A (en) 1981-11-10 1986-01-21 U.S. Philips Corporation Color imaging device
JPS62118686A (en) 1985-11-19 1987-05-30 Toshiba Corp Single board type solid-state image pickup device
US4685451A (en) 1981-09-12 1987-08-11 Fuji Photo Optical Co., Ltd. Endoscope apparatus using solid state image pickup device
US4853772A (en) * 1987-02-26 1989-08-01 Olympus Optical Co., Ltd. Electronic endoscope apparatus having isolated patient and secondary circuitry
US4922333A (en) 1988-12-15 1990-05-01 Eastman Kodak Company Video copying apparatus spectrally-responsive to slides or negatives
US5425123A (en) * 1993-07-20 1995-06-13 Hicks; John W. Multifiber endoscope with multiple viewing modes to produce an image free of fixed pattern noise
EP0667115A1 (en) 1994-01-17 1995-08-16 State Of Israel - Ministry Of Defence An "in vivo" video camera system
US5489256A (en) * 1992-09-01 1996-02-06 Adair; Edwin L. Sterilizable endoscope with separable disposable tube assembly
US5604530A (en) * 1992-08-14 1997-02-18 Olympus Optical Co., Ltd. Solid-state image sensing device for endoscope and endoscope imaging apparatus
JPH11225996A (en) 1998-02-19 1999-08-24 Olympus Optical Co Ltd Capsule type in vivo information detector
US6137100A (en) 1998-06-08 2000-10-24 Photobit Corporation CMOS image sensor with different pixel sizes for different colors
US6292212B1 (en) 1994-12-23 2001-09-18 Eastman Kodak Company Electronic color infrared camera
DE10046309C1 (en) 2000-09-19 2001-10-31 Siemens Ag Image recognition sensor device has 2 sets of sensor elements using visible and IR light, e.g. for providing video telephone image and user identification image
US6452624B1 (en) * 1997-09-02 2002-09-17 Omnilabo N.V. Medical video endoscopy monitoring device
US20020167465A1 (en) 2001-03-21 2002-11-14 Yoshiaki Okuno Display device and image displaying method
US20060036131A1 (en) * 2001-08-02 2006-02-16 Arkady Glukhovsky In vivo imaging device, system and method
US7116352B2 (en) * 1999-02-25 2006-10-03 Visionsense Ltd. Capsule

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124873B2 (en) * 1977-01-31 1986-06-12 Sony Corp
JPS5724182A (en) * 1980-07-21 1982-02-08 Toshiba Corp Color image sensor
JP2733859B2 (en) * 1989-09-28 1998-03-30 キヤノン株式会社 Color imaging device
JPH05328366A (en) * 1992-05-27 1993-12-10 Sony Corp Image pickup device for high resolution still image
JPH10243409A (en) * 1997-03-03 1998-09-11 Nikon Corp Two-board type image pickup device

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971065A (en) 1975-03-05 1976-07-20 Eastman Kodak Company Color imaging array
US4685451A (en) 1981-09-12 1987-08-11 Fuji Photo Optical Co., Ltd. Endoscope apparatus using solid state image pickup device
US4565756A (en) 1981-11-10 1986-01-21 U.S. Philips Corporation Color imaging device
JPS62118686A (en) 1985-11-19 1987-05-30 Toshiba Corp Single board type solid-state image pickup device
US4853772A (en) * 1987-02-26 1989-08-01 Olympus Optical Co., Ltd. Electronic endoscope apparatus having isolated patient and secondary circuitry
US4922333A (en) 1988-12-15 1990-05-01 Eastman Kodak Company Video copying apparatus spectrally-responsive to slides or negatives
US5604530A (en) * 1992-08-14 1997-02-18 Olympus Optical Co., Ltd. Solid-state image sensing device for endoscope and endoscope imaging apparatus
US5489256A (en) * 1992-09-01 1996-02-06 Adair; Edwin L. Sterilizable endoscope with separable disposable tube assembly
US5425123A (en) * 1993-07-20 1995-06-13 Hicks; John W. Multifiber endoscope with multiple viewing modes to produce an image free of fixed pattern noise
EP0667115A1 (en) 1994-01-17 1995-08-16 State Of Israel - Ministry Of Defence An "in vivo" video camera system
US6292212B1 (en) 1994-12-23 2001-09-18 Eastman Kodak Company Electronic color infrared camera
US6452624B1 (en) * 1997-09-02 2002-09-17 Omnilabo N.V. Medical video endoscopy monitoring device
JPH11225996A (en) 1998-02-19 1999-08-24 Olympus Optical Co Ltd Capsule type in vivo information detector
US6137100A (en) 1998-06-08 2000-10-24 Photobit Corporation CMOS image sensor with different pixel sizes for different colors
US7116352B2 (en) * 1999-02-25 2006-10-03 Visionsense Ltd. Capsule
DE10046309C1 (en) 2000-09-19 2001-10-31 Siemens Ag Image recognition sensor device has 2 sets of sensor elements using visible and IR light, e.g. for providing video telephone image and user identification image
US20020167465A1 (en) 2001-03-21 2002-11-14 Yoshiaki Okuno Display device and image displaying method
US20060036131A1 (en) * 2001-08-02 2006-02-16 Arkady Glukhovsky In vivo imaging device, system and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090295962A1 (en) * 2008-05-30 2009-12-03 Omnivision Image sensor having differing wavelength filters
US7990445B2 (en) * 2008-05-30 2011-08-02 Omnivision Technologies, Inc. Image sensor having differing wavelength filters
US8765333B2 (en) 2012-07-30 2014-07-01 United Microelectronics Corp. Color filter array having hybrid color filters and manufacturing method thereof
US9497380B1 (en) 2013-02-15 2016-11-15 Red.Com, Inc. Dense field imaging
US9769365B1 (en) 2013-02-15 2017-09-19 Red.Com, Inc. Dense field imaging

Also Published As

Publication number Publication date Type
US20030211405A1 (en) 2003-11-13 application
EP1506679A1 (en) 2005-02-16 application
DE60310706D1 (en) 2007-02-08 grant
CN100375539C (en) 2008-03-12 grant
KR100621086B1 (en) 2006-09-14 grant
US20040234873A1 (en) 2004-11-25 application
CN1669332A (en) 2005-09-14 application
EP1506679B1 (en) 2006-12-27 grant
KR20050003456A (en) 2005-01-10 application
WO2003098940A1 (en) 2003-11-27 application
JP2005526458A (en) 2005-09-02 application
DE60310706T2 (en) 2007-10-11 grant
US6783900B2 (en) 2004-08-31 grant

Similar Documents

Publication Publication Date Title
US6137100A (en) CMOS image sensor with different pixel sizes for different colors
US7535073B2 (en) Solid-state imaging device, camera module and electronic equipment module
US6046466A (en) Solid-state imaging device
US7274393B2 (en) Four-color mosaic pattern for depth and image capture
US7859033B2 (en) Wafer level processing for backside illuminated sensors
US6946715B2 (en) CMOS image sensor and method of fabrication
US20100201834A1 (en) Solid-state imaging device, method of manufacturing the same, and electronic apparatus
US20110109776A1 (en) Imaging device and imaging apparatus
US20120025060A1 (en) Solid-state imaging element and manufacturing method thereof, and electronic information device
US20060055800A1 (en) Adaptive solid state image sensor
US20070194397A1 (en) Photo-sensor and pixel array with backside illumination and method of forming the photo-sensor
US6930336B1 (en) Vertical-color-filter detector group with trench isolation
US20090295973A1 (en) Solid-State Image Pickup Device
US20090278048A1 (en) Multilayer image sensor
US20010036361A1 (en) Focus detecting device
US20090230287A1 (en) Stacked image sensor with shared diffusion regions in respective dropped pixel positions of a pixel array
US20100020209A1 (en) Imaging method and apparatus
US20060043515A1 (en) Light block for pixel arrays
US20030210332A1 (en) One chip, low light level color camera
US20020051071A1 (en) Image pickup apparatus
US20080291311A1 (en) Image pickup device, focus detection device, image pickup apparatus, method for manufacturing image pickup device, method for manufacturing focus detection device, and method for manufacturing image pickup apparatus
US20030086008A1 (en) Image pick-up apparatus
US7794394B2 (en) Device for wavelength-selective imaging
US6958862B1 (en) Use of a lenslet array with a vertically stacked pixel array
US20090050947A1 (en) Apparatus, system, and method providing backside illuminated imaging device

Legal Events

Date Code Title Description
FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: MICRON TECHNOLOGY, INC., IDAHO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VENKATARAMAN, KARTIK;REEL/FRAME:040308/0582

Effective date: 20020513

AS Assignment

Owner name: APTINA IMAGING CORPORATION, CAYMAN ISLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MICRON TECHNOLOGY, INC.;REEL/FRAME:040823/0001

Effective date: 20080926

MAFP

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552)

Year of fee payment: 8